A researcher assigns employees to three groups: No feedback, moderate feedback, and then substantial feedback. She then records how long it takes each group to learn a new, moderately complex job task. What is the independent variable in this design?

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The independent variable in this design is the three different feedback groups, which are the no feedback group, moderate feedback group, and substantial feedback group. The researcher is manipulating the amount of feedback given to the employees and observing its effect on how long it takes them to learn the job task. Therefore, the independent variable is the different levels of feedback.

A Researcher Assigns Employees to Three Groups: No Feedback, Moderate